Why Bake Off fans need to be braced for big drama tonight

It looks like we’re in for another dramatic ride with tonight’s instalment of The Great British Bake Off, with a preview of the episode showing leaking bakes and uncooked sponge.

Watch the clip below:

Tonight's (29 October) episode marks Autumn Week in the tent, with bakers tasked with making a sweet, seasonal pie for the Signature, a ‘vegan version of a Northern classic’ in the Technical and a vegetable-based cake Showstopper.

And it looks like the final round won’t be without its issues for some bakers - including Dylan, who suffers a huge ‘delay’.

Channel 4 has released a preview of tonight’s show, showing the contestants frantically rushing to get their Showstoppers finished in time.

The channel teased: “This week’s Showstopper challenge sees our bakers make delicious celebration cakes out of vegetables for Autumn week. We first join Dylan, where he still has one cake to bake and would only have ten minutes left on the clock to decorate. Whilst Dylan cake has been delayed, others start to assemble theirs. Will every baker present a Showstopper in time?”

Dylan looks concerned in the clip of tonight's episode (Channel 4)

The clip shows Dylan in the last stages of his peacock-topped cake, but there's one big problem.

“I’m still waiting for it to bake,” he tells host Noel Fielding as cake batter can be seen dropping from the tin.

“So in the meanwhile I’m going to make my peacock cake topper.”

Peering into the oven, Fielding tells him: “It’s big though, it’s rising!”

His cake is 'still baking' with just minutes to spare (Channel 4)

Looking noticeably worried, Dylan replied: “Yeah, but, I need it to cool... Which will leave me with 10 minutes to decorate the top tier of the cake.”

A concerned Fielding then says: “Urrgghhh! What are you doing to me?! You’ll give me a heart attack.”

Noel Fielding jokes he's going to have a 'heart attack' from the stress (Channel 4)

And it’s not all plain-sailing for some of the others, by the looks of things, with Georgie slicing open her sponge to find raw batter.

“Ugh, that’s not cooked,” she says.

“Ah... marvellous.”

Even the unflappable Nelly admits hers ‘could be better’, saying it feels a bit too ‘moist’.

And it gets worse.

According to the Radio Times, there's due to be a big accident for one person's Showstopper.

"It’s Autumn week in the tent or, if you’re American, Fall week, which is sadly appropriate for one baker, who manages to drop part of their festival showstopper on the floor," reviewer Jane Rackham explained.

"The contestants start by making sweet autumnal pies, including one with an unusual apple and poppyseed filling that gets the judges hunting for toothpicks after tasting."

Watch The Great British Bake Off tonight at 9pm on Channel 4.